How to write an interface in PHP to send invitation codes to mobile phones

1. The invitation code is a randomly generated 6-digit number. According to the mobile phone number filled in on the web page, the generated invitation code will be sent to the mobile phone.

Reply content:

1. The invitation code is a randomly generated 6-digit number. According to the mobile phone number filled in on the web page, the generated invitation code will be sent to the mobile phone.

You and your server alone cannot send text messages to mobile phones. The mobile phone network is another system independent of the Internet. You must have an interaction with the operator. However, operators with deep pockets cannot make such a small amount of money, so they will delegate SMS sending services to various agents. So first you have to find a company that provides SMS sending services, ask them for documents, and then use curl to send the parameters specified in the document to their interface address. If everything goes well, your mobile phone will receive verification codes, invitation codes, and various codes. .

To send text messages, use PHPSMS or a ready-made third-party interface.

Alibaba Dayu has a text messaging service, a very cheap interface

The common method in PHP is to use the rand function to generate a six-digit random number, store it in the session and set its expiration time. Call the SMS service provider interface to send SMS messages.
The user receives the text message, fills in the verification code, and compares it with the verification code previously stored in the session. If they are consistent, the verification is successful.
The page js sets a 60-second countdown and makes the button unselectable. Refresh the page to read whether the last stored session time is greater than 60 seconds. If it is greater than 60, it can be sent again, otherwise it will continue to count seconds. The number of seconds is the session storage time - the current time.
The page countdown is 0 and the button becomes clickable.

Yes, Alibaba has this service. You can go to Alibaba to check it out.

NetEase Cloud Messenger is very stable for sending text messages and the price is affordable